參數(shù)資料
型號(hào): C5NPD0-DS
英文描述: QUAD BILATERAL SWITCH FOR TRANSMISSION OR MULTIPLEXING OF ANALOG OR DIGITAL SIGNALS
中文描述: 的C - 5網(wǎng)絡(luò)處理器的數(shù)據(jù)資料硅修訂D0
文件頁數(shù): 22/100頁
文件大?。?/td> 2163K
代理商: C5NPD0-DS
22
CHAPTER 1: FUNCTIONAL DESCRIPTION
C5NPD0-DS/D REV 04
MOTOROLA GENERAL BUSINESS INFORMATION
Channel Processors
The C-5 NP contains sixteen programmable Channel Processors (CPs) that receive,
process, and transmit network data. The number of CPs per port is configurable,
depending on the line interface. Typically one CP is assigned to each port for medium
bandwidth applications (Fast Ethernet to OC-3). Multiple CPs can be assigned to a port in
a configuration called
channel aggregation
in high bandwidth applications (greater than
OC-3). Multiple logical ports can be assigned to a single CP with the addition of an
external multiplexor, for low bandwidth applications, such as DS1 to DS3.
The C-5 NP
s architecture supports a variety of industry-standard serial and parallel
protocols and individual port data rates including:
10Mb Ethernet (RMII)
100Mb Ethernet (RMII)
1Gb Ethernet (GMII and TBI)
OC-3
OC-12
DS1/DS3, supported through the use of external framers/multiplexors
The C-5 NP’s programmability can also support a variety of special interfaces, such as
various xDSL encapsulations and proprietary protocols.
Key components of each CP are a RISC Core (CPRC) that orchestrates cell/packet
processing and a set of microprogrammable, special-purpose processors, called Serial
Data Processors (SDPs), that provide features such as Ethernet MAC and SONET framing,
multichannel HDLC, and ATM cell delineation. This means you usually only need to
include PHYs to complete the system.
Executive Processor
The Executive Processor (XP) serves as a centralized computing resource for the C-5 NP
and manages the system interfaces.
The XP performs conventional supervisory tasks in the C-5 NP including:
Reset and initialization of the C-5 NP
Program loading and control of CPs
Centralized exception handling
F
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